<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> 
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>HTML5 Canvas实现各种炫酷的仪表盘动画DEMO演示02</title>

<link rel="stylesheet" type="text/css" href="css/normalize.css" />
<link rel="stylesheet" type="text/css" href="css/zzsc-demo.css">

<style type="text/css">
	body {
		padding: 0;
		margin: 0;
		background: #fff
		}
		.btn-container{
			padding: 1em 0;
			text-align: center;
		}
	.container{
		width: 700px;
		margin: 50px auto;
	}
</style>

<script src="js/gauge.min.js"></script>

</head>
<body>
<div class="zzsc-container">
	<header class="zzsc-header">
		<div class="zzsc-demo center">
		  <a href="index.html" class="current">radial</a>
		  <a href="radial-component.html">radial-component</a>
		  <a href="linear-component.html">linear-component</a>
		  <a href="issue-63.html">issue-63</a>
		  <a href="async.html">async</a>
		  <a href="scripted.html">scripted</a>
		</div>
	</header>
	<div style="text-align:center;clear:both">
<script src="/gg_bd_ad_720x90.js" type="text/javascript"></script>
<script src="/follow.js" type="text/javascript"></script>
</div>
	<div class="btn-container">
		<button onclick="animateGauges()">Animate</button>
		<button onclick="stopGaugesAnimation()">Stop animation</button>
	</div>
	<div class="container">
	<canvas  data-type="radial-gauge"
				 data-min-value="0"
				 data-max-value="360"
				 data-major-ticks="N,NE,E,SE,S,SW,W,NW,N"
				 data-minor-ticks="22"
				 data-ticks-angle="360"
				 data-start-angle="180"
				 data-stroke-ticks="false"
				 data-highlights="false"
				 data-color-plate="#222"
				 data-color-major-ticks="#f5f5f5"
				 data-color-minor-ticks="#ddd"
				 data-color-numbers="#ccc"
				 data-color-needle="rgba(240, 128, 128, 1)"
				 data-color-needle-end="rgba(255, 160, 122, .9)"
				 data-value-box="false"
				 data-value-text-shadow="false"
				 data-color-circle-inner="#fff"
				 data-color-needle-circle-outer="#ccc"
				 data-needle-circle-size="15"
				 data-needle-circle-outer="false"
				 data-needle-type="line"
				 data-needle-start="75"
				 data-needle-end="99"
				 data-needle-width="3"
				 data-borders="true"
				 data-border-inner-width="0"
				 data-border-middle-width="0"
				 data-border-outer-width="10"
				 data-color-border-outer="#ccc"
				 data-color-border-outer-end="#ccc"
				 data-color-needle-shadow-down="#222"
				 data-animation-target="plate"
				 data-animation-duration="1500"
				 data-animation-rule="linear"
				 data-width="300"
				 data-height="300"
				 data-units="ᵍ"
				 data-value="0"
		></canvas>

		<canvas data-type="radial-gauge"
				data-width="300"
				data-height="300"
				data-min-value="0"
				data-max-value="360"
				data-major-ticks="N,NE,E,SE,S,SW,W,NW,N"
				data-minor-ticks="22"
				data-ticks-angle="360"
				data-start-angle="180"
				data-stroke-ticks="false"
				data-highlights="false"
				data-color-plate="#33a"
				data-color-major-ticks="#f5f5f5"
				data-color-minor-ticks="#ddd"
				data-color-numbers="#ccc"
				data-color-needle="rgba(240, 128, 128, 1)"
				data-color-needle-end="rgba(255, 160, 122, .9)"
				data-value-box="false"
				data-value-text-shadow="false"
				data-color-circle-inner="#fff"
				data-color-needle-circle-outer="#ccc"
				data-needle-circle-size="15"
				data-needle-circle-outer="false"
				data-animation-rule="linear"
				data-needle-type="line"
				data-needle-start="75"
				data-needle-end="99"
				data-needle-width="3"
				data-borders="true"
				data-border-inner-width="0"
				data-border-middle-width="0"
				data-border-outer-width="10"
				data-color-border-outer="#ccc"
				data-color-border-outer-end="#ccc"
				data-color-needle-shadow-down="#222"
				data-border-shadow-width="0"
				data-animation-target="plate"
				data-units="ᵍ"
				data-title="DIRECTION"
				data-font-title-size="19"
				data-color-title="#f5f5f5"
				data-animation-duration="1500"
				data-value="45"
				data-animate-on-init="true"
		></canvas>
	</div>
</div>

<script>
if (!Array.prototype.forEach) {
	Array.prototype.forEach = function(cb) {
		var i = 0, s = this.length;
		for (; i < s; i++) {
			cb && cb(this[i], i, this);
		}
	}
}

document.fonts && document.fonts.forEach(function(font) {
	font.loaded.then(function() {
		if (font.family.match(/Led/)) {
			document.gauges.forEach(function(gauge) {
				gauge.update();
			});
		}
	});
});

var timers = [];

function animateGauges() {
	document.gauges.forEach(function(gauge) {
		timers.push(setInterval(function() {
			gauge.value = Math.random() *
				(gauge.options.maxValue - gauge.options.minValue) / 4 +
				gauge.options.minValue / 4;
		}, gauge.animation.duration + 50));
	});
}

function stopGaugesAnimation() {
	timers.forEach(function(timer) {
		clearInterval(timer);
	});
}
</script>

</body>
</html>